set_enrolment_method

SERVERMoodle SOURCE@falkenslab/moodle-mcp

Medium RISK CLASS

Category Write

Parameters 111 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/falkenslab-moodle-mcp/set-enrolment-method.md

WHAT IT DOES

What set_enrolment_method does on Moodle

AI agents use set_enrolment_method to create or update resources in Moodle, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Moodle environment.

Parameter	Type	Required	Description
`end`	string	—	Until when, ISO 8601; "none" to remove it
`key`	string	—	Self enrolment or guest access key; empty to remove it
`start`	string	—	From when, ISO 8601; "none" to remove it
`roleId`	integer	—
`enabled`	boolean	—
`courseId`	integer	Yes
`maxUsers`	integer	—	0 for no limit
`methodId`	integer	—	As list_enrolment_methods gives it
`noWelcome`	boolean	—	Self enrolment: send no welcome message
`methodType`	string	—	Or the method's type, such as "self" or "guest"
`welcomeMessage`	string	—	Self enrolment: send this welcome message

Parameters from the server's own tool schema.

RISK

Why set_enrolment_method is rated Medium

An AI agent can call set_enrolment_method faster than any human can review: one bad instruction and it creates or modifies resources in Moodle by the hundred, each call as confident as the last.

Risk signalsHigh parameter count (11 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_enrolment_method safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Moodle, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For set_enrolment_method, this is the rule to start with:

set_enrolment_method Rate-limited

set_enrolment_method stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_enrolment_method": {
      "limits": [
        {
          "counter": "set_enrolment_method_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Moodle, apply this rule, and every set_enrolment_method call is checked against it from then on.

FAQ

Questions about set_enrolment_method

What does the set_enrolment_method tool do? +

Change an enrolment method with its form, by its id or the course's first of a type (methodType "self": added when the course has none and Moodle offers it): turn it on or off, its key, dates, role, limit and welcome message. Only what's given changes. Returns the method afterwards (never the key). Opens or closes the course to people: confirm with the person first. It is categorised as a Write tool in the Moodle MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does set_enrolment_method accept? +

set_enrolment_method accepts 11 parameters: end, key, start, roleId, enabled, courseId, maxUsers, methodId, noWelcome, methodType, welcomeMessage. Required: courseId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on set_enrolment_method? +

Register the Moodle MCP server in PolicyLayer and add a rule for set_enrolment_method: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Moodle. Nothing to install.

What risk level is set_enrolment_method? +

set_enrolment_method is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit set_enrolment_method? +

Yes. Add a rate_limit block to the set_enrolment_method rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block set_enrolment_method completely? +

Set action: deny in the PolicyLayer policy for set_enrolment_method. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides set_enrolment_method? +

set_enrolment_method is provided by the Moodle MCP server (@falkenslab/moodle-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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